Set legacy to True after initialization

tokenizer.tokenize() method doens't respect legacy if it's not set explicitly after initialization with legacy=False

preprocessing/1/model.py

@@ -73,6 +73,7 @@ class TritonPythonModel:
         elif tokenizer_type == 'llama':
             self.tokenizer = LlamaTokenizer.from_pretrained(
                 tokenizer_dir, legacy=False, padding_side='left')
+            self.tokenizer.legacy = True
         else:
             raise AttributeError(
                 f'Unexpected tokenizer type: {tokenizer_type}')